Hi. First sorry for my bad english. I work as interior designer and I use Archicad and photoshop. My projects are becoming more complex. But I have an old computer. I want to buy iMac 27 ( that : http://www.apple.com/shop/buy-mac/imac?product=MK472LL/A&step=config# ) Is it good for a continuous work and faster rendering in Archicad ? My friends say I bought a PC with Windows , cause iMac has worse components for that price. Can you help me make a final desicion? Thank you.